A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6620-01-281-6386
NSN 5960-01-452-1907
NSN 4140-01-519-7940
NSN 5999-01-346-6017
NSN 6130-01-516-7669
NSN 6105-01-145-4464
NSN 4140-01-651-7192
NSN 6620-00-988-0976
NSN 5895-01-521-7952
NSN 6145-01-372-9551
NSN 6620-00-955-6122
NSN 6130-00-826-7857